How to exclude Json properties from WebApi response using a custom ContractResolver

I am currently working on a Backend API that acts as a middleman to a Front API and a DocumentDB database (the structure is shown in the above image).

I had the following class which is used to send data to both the Front API and to the DocumentDB. Some of the fields needed to be hidden when returning a response back to the Front API, since they weren’t useful for the user and for security concerns. First I tried using [JsonIgnore] and [IgnoreDataMember] (as seen below), which successfully excluded the required fields from the response, but using them was also excluding the same fields when sending the data to DocumentDB, so it was a no-go.